[U-Boot] watchdog reset fails on kirkwood/dreamplug

[Prafulla Wadaskar]

> -----Original Message-----
> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de]
> On Behalf Of Jason
> Sent: Friday, October 21, 2011 7:54 PM
> To: u-boot at lists.denx.de
> Subject: [U-Boot] watchdog reset fails on kirkwood/dreamplug
> 
> All,
> 
> I have a bad problem.  I'm using the watchdog that comes with the
> Marvell
> DreamPlug (kirkwood SoC).  I'm using it because I occasionally get Linux
> kernel
> oops/freezes.  The oops/freezes are not consistent.  However, what is
> consistent, is that after a freeze, Linux fails to boot.  It stops at
> 'Uncompressing Linux'.
> 
> When I kill the process that kicks the dog, the reboot is initiated
> properly
> and the system comes back up just fine.  It only fails when the system
> freezes.
> 
> On warm reboots, is there something I should have u-boot reset that
> isn't?  I'm
> a little out of my depth with this one and would appreciate any
> pointers.

Hi Jason

If you are using watch dog at kernel level, then you should reset it at u-boot level.
On warm start, I don't think watchdog registers gets changed by the system (I have not used them)

Regards..
Prafulla . .
 

> 
> thx,
> 
> Jason.
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot